Method of producing an engine oil degradation inhabitor

ABSTRACT

The engine oil degradation inhibitor produced by mixing a fermentation  bacterium  and a soil  bacterium  cultivated separately in a culture medium made from molasses diluted with water, and then adding an organic fat.

FIELD OF INVENTION

This invention relates to a method of producing an inhibitor thatprevious degradation of engine oils used in vehicles and heavy machines,or vessels.

BACKGROUND OF INVENTION

Engine oil supplied to rotating parts and sliding parts of engine of avehicle and the like for lubrication is pooled in an oil pan located ina bottom part of the engine, sucked up by an oil pump driven by a partof power of the engine as soon as the engine starts, and sent therotating parts and the sliding parts such as a crank shaft, piston pins,pistons and piston rings by a pressure generated by the pump.

The engine oil turns to oil droplets or fails in the oil pan throughwalls after lubrication, and repeats lubrication. Thus, the engine oildegrades due to repetition of the action, and needs to be changedtypically every 3,000-5,000 km. Degradation of engine oil is noticed byblackening due to generation of sludge, loosing viscosity and feeling ofgranular.

Increase in friction resistance at the rotating parts and the slidingparts inside the engine due to the degradation and damaging inner wallsof cylinders result in a reduction of output capacity of the engine.Generation of toxic substances such as NOx and carbon monoxide due topoor combustion efficiency, deterioration of fuel economy, andshortening of engine life are problems.

Thus, oil change is required. However, for vehicles used for businesssuch as transportation, taxi and bus, the engine oil change in a shortinterval is necessary and complication of the oil change work leads tolow productivity. Handling of used engine oil is a problem due toenvironmental protection in recent years, thus a large expense fordisposal and recycling, and time-consuming work are problems.

The engine oil gradually degrades in proportion to usage frequency, thusthe engine performance also gradually degrades, and problems of poorfuel economy and generation of toxic substances occur.

SUMMARY OF INVENTION

In order to solve this problems, the present invention provides a methodof producing a degradation inhibitor that is added to the engine oil toregenerate the engine oil and prevent degradation.

The method of producing the engine oil degradation inhibitor of thepresent invention comprises a process of mixing fermentation bacteriumand a soil bacterium cultivated separately in a culture medium made frommolasses diluted with water, and a process of adding an organic fat. Asthe fermentation bacterium, a bacterium or bacteria belonged to usefulbacteria such as yeast and aspergillus oryzae (barley, rice, soy sourceor the like) are utilized.

The soil bacterium is obtained by culturing a supernatant liquid of soilcollected from neighboring mountains, stirred with water and settled ina container. As the organic fat, castor oil or the like are also used.The fat is a source of nutrients for a mixed bacteria to be able tocontinue fermentation when the mixed bacteria of the fermentationbacterium and the soil bacterium are added to the engine oil made froman inorganic fat, and a ratio of the mixed bacteria and the organic fatis preferably within the range of bacteria/fat: 6/4-7/3.

The degradation inhibitor of the present invention prevents generationof sludge in the engine oil by the carbonization deterrent action of themixed bacteria of the fermentation bacterium and the soil bacterium, andhas an effect of deterring decline of viscosity by the regeneratingaction. The interval of the engine oil change that is normally 3,000km-5,000 km is extended to more than 20,000 km without degradation ofthe oil, thus the lifetime of the engine oil significantly improves.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a block diagram of the production process of thepresent invention.

DETAILED DESCRIPTION OF EMBODIMENTS

A method of producing the engine oil degradation inhibitor of thepresent invention is described in detail in the following. First, afermentation bacterium such as yeast or aspergillus oryzae is separatelyadded to a culture medium made from molasses diluted with water by100-120 times. The culture medium is kept in an incubator at 30° C.-40°C. for 48-72 hours until an active fermentation is observed. Thebacteria are further naturally cultured at room temperature. Thesupernatant liquid is fileted and is naturally cultured in the culture.

Secondly, soil collected from the neighboring mountains of Soyo-machiKumamoto-prefecture is added, stirred and waited until settlement. Afterconfirmation of the settlement, the supernatant liquid is sampled andadded to the cultural kept at 30° C.-40° C. After confirmation of activefermentation, the soil bacterium is naturally cultured. The fermentationbacterium and the soil bacterium are added to the culture at the ratioof 2-4% and kept at 30° C.-40° C.. After confirmation of activefermentation, the bacteria are naturally cultured at room temperature.

Thirdly, said cultural mixed bacteria are further mixed with the cultureat the ratio of 1-2%, and cultured. As shown in FIG. 1, 100 liter mixedbacteria tank 1 and organic fat tank 2 are prepared and the mixedbacteria cultured in the final culturing process and the castor oil, anorganic oil are poured in mixed bacteria tank 1 and organic fat tank 2,respectively.

The engine oil degradation inhibitor is produced by mixing the mixedbacteria and the castor oil at the ratio of 6/4-7/3 and transferring tothe 1.8 litter Container 3.

Example 1

Four (4) liters of engine oil of a vehicle with the mileage of 150,000km is changed, and then the degradation state is inspected at 160,000km. The engine oil is considerably dirty. 300 milliliters of engine oildegradation inhibitor of the present invention is added without anytreatment for the oil. The degradation state of the engine oil isinspected at 165,000 km. It is confirmed that the dirtness has notchanged but the viscosity remains.

An additional 300 milliliters of the engine oil degradation inhibitor isadded. The degradation state of the engine oil is inspected at 170,000km. The sludge becomes fairly thin and the color changes to caramel, andthus viscosity state is close to that at the oil change

Example 2

Four (4) liters of the engine oil of a vehicle with the mileage of155,000 km is changed, and then the degradation state is inspected at158,000 km. The engine oil is slightly dirty. 300 milliliters of theengine oil degradation inhibitor of the present invention is addedwithout any treatment for the oil. The degradation state of the engineis inspected at 168,000 km. It is confirmed that the sludge is barelyrecognizable and viscosity remains.

An additional 300 milliliters of the engine oil degradation inhibitor isadded. The degradation state of the engine oil is inspected at 178,000km. It is confirmed that the color and viscosity remain in the state atthe oil change. Judging from the examples, the inhibitor has effect onregeneration and life extension of the engine oil. The effect ismaintained for 2-4 times when the normal oil change interval is 5,000km. It is confirmed that functionality of the engine itself improves,fuel economy also improves, and the discharge of toxic gases such as NOxreduces.

As mentioned above, according to the present invention, the effect ofadding the engine oil degradation inhibitor is effective for 2-4 timesmore than the normal oil change interval. Thus, the oil change work issignificantly reduced the transportation business, which produces a hugeeconomical results.

1. A method of producing an engine oil degradation inhibitor comprising: a process of mixing a fermentation bacterium and a soil bacterium cultivated separately in a culture medium made from molasses diluted with water, and a process of adding an organic fat to the mixture. 